1910s Boston Safety 12 Eyedropper Fountain Pen - SEMIFLEX FACTORY STUB both on the barrel: one

both on the barrel: one just to the right of the lever spade and one on the edge of the blank barrel indicia (see timestamp photo)

Details: John Hancock pens were manufactured by the Pollock Pen Company of Boston

There is also a chip in the feed that has no discernible effect on the way the pen writes

slender models was this short

1910s Boston Safety 12 Eyedropper Fountain Pen - SEMIFLEX FACTORY STUB both on the barrel: oneVintage: 1910s Make: Boston Model: #12 flat top eyedropper Color: Black chased Materials: Hard rubber, nickel plated trim Filling System: Eyedropper filler. Threads regreased. This pen holds much more ink than does a lever filler of the same size. Its filled by unscrewing the section and filling the barrel with ink directly by means of an eyedropper or pipette. Length: This full sized model measures 5 3 16 capped Nib: 14k Boston Safety #2 nib is a